// Copyright 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include <stddef.h>

#include <vector>

#include "base/strings/string16.h"
#include "content/common/indexed_db/indexed_db_key.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace content {

namespace {

    TEST(IndexedDBKeyTest, KeySizeEstimates)
    {
        std::vector<IndexedDBKey> keys;
        std::vector<size_t> estimates;

        keys.push_back(IndexedDBKey());
        estimates.push_back(16u); // Overhead.

        keys.push_back(IndexedDBKey(blink::WebIDBKeyTypeNull));
        estimates.push_back(16u);

        double number = 3.14159;
        keys.push_back(IndexedDBKey(number, blink::WebIDBKeyTypeNumber));
        estimates.push_back(24u); // Overhead + sizeof(double).

        double date = 1370884329.0;
        keys.push_back(IndexedDBKey(date, blink::WebIDBKeyTypeDate));
        estimates.push_back(24u); // Overhead + sizeof(double).

        const base::string16 string(1024, static_cast<base::char16>('X'));
        keys.push_back(IndexedDBKey(string));
        // Overhead + string length * sizeof(base::char16).
        estimates.push_back(2064u);

        const size_t array_size = 1024;
        IndexedDBKey::KeyArray array;
        double value = 123.456;
        for (size_t i = 0; i < array_size; ++i) {
            array.push_back(IndexedDBKey(value, blink::WebIDBKeyTypeNumber));
        }
        keys.push_back(IndexedDBKey(array));
        // Overhead + array length * (Overhead + sizeof(double)).
        estimates.push_back(24592u);

        ASSERT_EQ(keys.size(), estimates.size());
        for (size_t i = 0; i < keys.size(); ++i) {
            EXPECT_EQ(estimates[i], keys[i].size_estimate());
        }
    }

} // namespace

} // namespace content
